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From: Adrian Hunter <adrian.hunter@intel.com>
To: Ulf Hansson <ulf.hansson@linaro.org>
Cc: linux-mmc <linux-mmc@vger.kernel.org>,
	Haridhar Kalvala <haridhar.kalvala@intel.com>
Subject: [PATCH 1/9] mmc: sdhci-pci: Stop calling sdhci_enable_irq_wakeups()
Date: Wed, 20 Dec 2017 10:18:45 +0200	[thread overview]
Message-ID: <1513757933-11232-2-git-send-email-adrian.hunter@intel.com> (raw)
In-Reply-To: <1513757933-11232-1-git-send-email-adrian.hunter@intel.com>

sdhci_enable_irq_wakeups() is already called by sdhci_suspend_host() so
sdhci-pci should not need to call it. However sdhci_suspend_host() only
calls it if wakeups are enabled, and sdhci-pci does not enable them until
after calling sdhci_suspend_host(). So move the calls to
sdhci_pci_init_wakeup() before calling sdhci_suspend_host(), and
stop calling sdhci_enable_irq_wakeups(). That results in some
simplification because sdhci_pci_suspend_host() and
__sdhci_pci_suspend_host() no longer need to be separate functions.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
---
 drivers/mmc/host/sdhci-pci-core.c | 58 ++++++++++++++-------------------------
 1 file changed, 21 insertions(+), 37 deletions(-)

diff --git a/drivers/mmc/host/sdhci-pci-core.c b/drivers/mmc/host/sdhci-pci-core.c
index 110c634cfb43..2ffc09f088ee 100644
--- a/drivers/mmc/host/sdhci-pci-core.c
+++ b/drivers/mmc/host/sdhci-pci-core.c
@@ -39,10 +39,29 @@
 static void sdhci_pci_hw_reset(struct sdhci_host *host);
 
 #ifdef CONFIG_PM_SLEEP
-static int __sdhci_pci_suspend_host(struct sdhci_pci_chip *chip)
+static int sdhci_pci_init_wakeup(struct sdhci_pci_chip *chip)
+{
+	mmc_pm_flag_t pm_flags = 0;
+	int i;
+
+	for (i = 0; i < chip->num_slots; i++) {
+		struct sdhci_pci_slot *slot = chip->slots[i];
+
+		if (slot)
+			pm_flags |= slot->host->mmc->pm_flags;
+	}
+
+	return device_init_wakeup(&chip->pdev->dev,
+				  (pm_flags & MMC_PM_KEEP_POWER) &&
+				  (pm_flags & MMC_PM_WAKE_SDIO_IRQ));
+}
+
+static int sdhci_pci_suspend_host(struct sdhci_pci_chip *chip)
 {
 	int i, ret;
 
+	sdhci_pci_init_wakeup(chip);
+
 	for (i = 0; i < chip->num_slots; i++) {
 		struct sdhci_pci_slot *slot = chip->slots[i];
 		struct sdhci_host *host;
@@ -58,9 +77,6 @@ static int __sdhci_pci_suspend_host(struct sdhci_pci_chip *chip)
 		ret = sdhci_suspend_host(host);
 		if (ret)
 			goto err_pci_suspend;
-
-		if (host->mmc->pm_flags & MMC_PM_WAKE_SDIO_IRQ)
-			sdhci_enable_irq_wakeups(host);
 	}
 
 	return 0;
@@ -71,36 +87,6 @@ static int __sdhci_pci_suspend_host(struct sdhci_pci_chip *chip)
 	return ret;
 }
 
-static int sdhci_pci_init_wakeup(struct sdhci_pci_chip *chip)
-{
-	mmc_pm_flag_t pm_flags = 0;
-	int i;
-
-	for (i = 0; i < chip->num_slots; i++) {
-		struct sdhci_pci_slot *slot = chip->slots[i];
-
-		if (slot)
-			pm_flags |= slot->host->mmc->pm_flags;
-	}
-
-	return device_init_wakeup(&chip->pdev->dev,
-				  (pm_flags & MMC_PM_KEEP_POWER) &&
-				  (pm_flags & MMC_PM_WAKE_SDIO_IRQ));
-}
-
-static int sdhci_pci_suspend_host(struct sdhci_pci_chip *chip)
-{
-	int ret;
-
-	ret = __sdhci_pci_suspend_host(chip);
-	if (ret)
-		return ret;
-
-	sdhci_pci_init_wakeup(chip);
-
-	return 0;
-}
-
 int sdhci_pci_resume_host(struct sdhci_pci_chip *chip)
 {
 	struct sdhci_pci_slot *slot;
@@ -1108,7 +1094,7 @@ static int jmicron_suspend(struct sdhci_pci_chip *chip)
 {
 	int i, ret;
 
-	ret = __sdhci_pci_suspend_host(chip);
+	ret = sdhci_pci_suspend_host(chip);
 	if (ret)
 		return ret;
 
@@ -1118,8 +1104,6 @@ static int jmicron_suspend(struct sdhci_pci_chip *chip)
 			jmicron_enable_mmc(chip->slots[i]->host, 0);
 	}
 
-	sdhci_pci_init_wakeup(chip);
-
 	return 0;
 }
 
-- 
1.9.1


  reply	other threads:[~2017-12-20  8:19 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-12-20  8:18 [PATCH 0/9] mmc: sdhci-pci: Respect PM flags when enabling card detect GPIO IRQ wakeup Adrian Hunter
2017-12-20  8:18 ` Adrian Hunter [this message]
2017-12-21 14:15   ` [PATCH 1/9] mmc: sdhci-pci: Stop calling sdhci_enable_irq_wakeups() Ulf Hansson
2017-12-21 14:25     ` Adrian Hunter
2017-12-21 15:33       ` Ulf Hansson
2018-01-08 14:49         ` Adrian Hunter
2018-01-09  0:26           ` Rafael J. Wysocki
2018-01-09  8:08             ` Adrian Hunter
2018-01-09 12:03               ` Rafael J. Wysocki
2018-01-09  0:46         ` Rafael J. Wysocki
2018-01-09  7:14           ` Ulf Hansson
2018-01-09 11:57             ` Rafael J. Wysocki
2017-12-20  8:18 ` [PATCH 2/9] mmc: sdhci-pci: Use device wakeup capability to determine MMC_PM_WAKE_SDIO_IRQ capability Adrian Hunter
2017-12-20  8:18 ` [PATCH 3/9] mmc: sdhci: Stop exporting sdhci_enable_irq_wakeups() Adrian Hunter
2017-12-20  8:18 ` [PATCH 4/9] mmc: sdhci: Handle failure of enable_irq_wake() Adrian Hunter
2017-12-20  8:18 ` [PATCH 5/9] mmc: sdhci: Rework sdhci_enable_irq_wakeups() Adrian Hunter
2017-12-20  8:18 ` [PATCH 6/9] mmc: sdhci: Do not unnecessarily enable wakeup for card detect interrupt Adrian Hunter
2017-12-20  8:18 ` [PATCH 7/9] mmc: sdhci: Do not unnecessarily enable wakeup for SDIO card interrupt Adrian Hunter
2017-12-20  8:18 ` [PATCH 8/9] mmc: slot-gpio: Add a function to enable/disable card detect IRQ wakeup Adrian Hunter
2017-12-20  8:18 ` [PATCH 9/9] mmc: sdhci-pci: Respect PM flags when enabling card detect GPIO " Adrian Hunter

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